Nail-puller.



H. BARTELS.

NAIL FULLER.

APPLICATION FILED APR. I9. 1918.

Patented July 9, 1918.

A QFFTCE.

HENRY BARTELS, OF COLEMAN, WISCONSIN.

NAIL-FULLER.

Specification of Letters Patent.

Patented July 9, 1913-.

Application filed April 19, 1918. Serial No. 229,610.

To all whom it may concern:

Be it known that I, HENRY BAn'rnLs, a citizen of the United States, residing at Coleman, in the county of Marinette and State of NVisconsin, have invented certain new and usefulImprovements in Nail-Pullers, of which the following is a specification.

The present invention relates to improve ments in that type of extracting devices commonly known as nail pullers, and is characterized as to novelty by the provision of" peculiar means for actuating jaws particularly in the operation of gripping the object to be extracted. More specifically, the object in view is toprovide a means referred to which produces a camming or wedging action by being interposed between the shank of the tool and a movable'jawsuch that upon proper movement of the shank or body of the toolthe j aw is positively actuated with reference to its cooperating j aw.

A further obj'ectjin View is to provide means of this type for efiecting closing of the jaws upon movementof' the tool in one direction while separate means effects opening movement of the jaws automatically when the object is "extracted.

It is stilla further'object toarrange'the said means in cooperative relationto a foot piece whereby the latter is instrumental in performing the actuation of the jaws incident to lateral 'movement of' the body of' the tooll Thesean'd'such other objects as may hereinafter appear are attained by the novel construction, combination and arrangement of partsto be hereinafterspecifically described and claimed Reference will now be'had to the accompanying drawings forming a part of this "specification, wherein:

Figure 1 is aside elevationofa device constructed inaccordance with my invention and showing in dotted lines the position of the parts when the tool has been rockediupon its fulcrum'piece as inextrac'ting a nail" or similar object Fig. 2 is a sideelevation of the toollooking at the same at right angles-t0 the position of Fig. 1;

Fig. 3 isan enlarged view of the lower extremity looking at this part from the opposite side of the tool to that shown in Fig. 2; and

Fig; 4 is a sectional view on the plane indicated by the line i-l of Fig. 3 showing more clearly the arrangement of the parts for actuating the jaw members.

Throughout the following detail descrip tion and'on the several figures of the drawing, similar parts are referred to by like reference characters. 7

Referring to the drawing and specifically describing the device, the tool embodies the shank 1, the movable rammer Q'at the upper end, and the oppositely arrangedpivoted jaw members 3, 3 atthe foot of the shank. The rammer 2 which is designed for the con-. ventional purpose of embedding the extremities of the jaw members or nippers 3 into the wood about the head of thenail or object to be extracted, has a central longitudinal bore receiving the upper end of the shank 1, the latter carry-ing a transversely arranged pin 4 the extremities of which'engage in lateral grooves 5 within the bore of the rammer 2. This interlocking arrangement prevents the rammer, which obviously constitutes-a handle for the'tool being particularly provided with a grip piece 2 at its upper extremityfor thispurpose, from turning upon the shank in the use oft-he device. At'G the shank is formed with an annular fiangeactingas a guard aswell asa cooperative stop-for the lower endof the rammer 2. The jaw members 3 arearranged diametrically opposite each other atthe foot of the shank and each is pivotedintermediate'its length between a pair of arms 7 fixed to the lower shank extremity. The upper ends of the jaw members extend above these arms and each lies normally in-spaced relation to the shank so'as to receive therebetween a Wedge or actuating member hereinafter specifically set forth.

The lower end'of'the shank-.1 is provided with an oflstanding lug 8 upon which a fulcrum foot. piece 9 is pivotally mounted, as at" 10. The foot piece 9 which is obviously adjacent to the jaw members, is so arranged as to cooperate-with the surface from which the nail is to be extracted, so that upon lateral rocking movement of the tool in amanner which will be understood by reference to Fig. 1, the upper end of said foot piece will move relatively toward the shank. Rigidly secured to this upper end of the foot piece is a movable wedge element 11 which in the specific embodiment disclosed in the drawings is of substantially U-shape so that the sides thereof engage about the opposite sides of theshank of the tool. As will be observed in Fig. 4, each of these sides is wedge shape in form, the smaller end of which in the normal open position of the jaws is arranged between the upper end of its adjacent jaw member and the side of the shank. Between the said shank and the upper end of the foot piece is arranged an expansion spring 12 which normally maintains the foot piece and the wedge member in the position above described, as shown in full lines in Fig. 1.

Upon the edge of each of the wedge shaped sides of the element 11 is a retainer 13 suitably engaging about the upper extremity of the adjacent jaw member, said retainer maintaining proper cooperative relation of the jaw member and the wedge art. It will be obvious from the foregoing description that when the tool is disposed in the position shown in full lines in Fig. 1, the rammer 2 may be actuated to embed the ends of the jaws in the wood about the head of the nail indicated at 11 so as to be in gripping position with respect to the head, whereupon lateral movement of the tool or lever in a direction transversely of the jaw members .the foot piece 9 will be pressed against the surface adjacent to thenail head which in turn shifts the wedge part 11 relatively speaking transversely between the upper extremities of the jaws so that these extremities are caused to ride upon the inclined outer edges of the wedge part, thereby effecting closing of the lower extremities of the jaws upon. the head of the nail. When thus positively gripped, continued movement of the tool in this same direction causes a fulcruming. on the foot piece and extraction of the nail in an obvious manner. This movement has caused compression of the spring 12 and immediately pressure is released from the foot piece 9 this spring shifts the latter to its original position so that the wedge piece with the cooperative action of thesretainers 13 bring the upper ends of the jaws toward the shank, thereby opening the jaw members.

While I have illustrated this invention in a form in which both of the jaws are movable, I do not desire to be restricted to such arrangement because it is obvious that the tool may be constructed with a relatively stationary jaw and a movable jaw cooperative therewith and operable in the manner hereinbefore described by the wedge element, without a modification of my inventive idea and within. the scope of the appended claims.

Having thus described my invention, what I claim as new is:

1. In an extracting tool of the class described, the combination with a shank and a movablej aw connected thereto and arranged in spaced relation to the shank, of means movable between the shank and the jaw to elfract positive actuation of the jaw' aforesa1 2. In an extracting tool of the class described, the combination with a shank and a movable jaw connected thereto, of wedge means interposable between the shank and the jaw to shift the latter away from the former incident to a lateral shifting of the tool to effect gripping action of the jaw with respect to the object to be extracted.

3. In an extracting tool of the class described, the combination with a shank and a movable jaw connected thereto, of means movable intermediate and transversely of the shank and the jaw, and a fulcrum piece to which said means is connected for actuating the movable means upon relative movement of the tool with respect to thefulcrum piece.

4. In an extracting tool of the class described the combination with a shank including a pivoted jaw, of actuating means therefor comprising a foot piece pivotally connected to the foot of the tool, and a part interposable between the shank of the tool and the jaw and movable transversely with respect to the jaw to actuate the latter upon exertion of pressure against an end ofthe foot piece.

5. A tool of the class described comprising a shank, a jaw. pivoted intermediate its length to the shank, a foot piece also pivoted to the shank adjacent to thejaw, and a 100 wedge shaped projection extending horizontally from the foot piece movable horizontally between the jaw and the shank for actuating the aw upon pivotal movement of the foot piece.

6. In an extracting tool of the class described, the combination with a shankand a movable jaw connected thereto, of means movable intermediate the shank and the jaw to efi'ect positive actuation of the jaw afore- 110 said, and a retainer on said means for maintaining the cooperative relation of the jaw and said means. I

7. A tool of the class described comprising a shank, a jaw pivoted intermediate its 115 length to the shank, a foot piece also pivoted to the shank adjacent to the jaw, a Wedge element carried by the foot piece and interposable between the jaw and the shank for actuating the jaw upon pivotal movement of 120 the foot piece, and a retainer carriedby the wedge element engaging about the jaw for maintaining cooperative relation between the jaw and said wedge element.

8. A tool of the class described compris- 125 ing a shank, a pair of opposing jaw members pivotally connected thereto at points intermediate their length, a double wedge mem ber arranged to engage about the tool shank so as to be interposed between the respective 1'30 jaw members and said shank, and pressure operated means for actuating said wedge member.

9. A tool of the class described comprismg a shank, a pair of opposing jaw members pivotally connected thereto at points intermediate their length, a wedge member arranged to engage about the tool shank so as to be interposed between the respective jaw members and said shank, retaining means arranged at each side of said wedge members so as to engage about the adjacent jaw member for maintaining cooperative relation between the jaw member and the wedge member, and pressure operated means for actuating said wedge member.

Copies of this patent may be obtained for five cents 10. A tool of the class described comprising a shank, a pair of jaw members pivotally connected to the shank at diametrically 0pposite points, a foot piece arranged at one side of the jaw members and pivotally connected to the shank, a substantially U-shaped wedge member engaging about the shank of the tool so as to lie between the jaw members and shank and having fixed connection with the foot piece, said jaw members being operable incident to pivotal movement of the foot piece when the tool is rocked upon said foot piece as a fulcrum.

In testimony whereof I ailix my signature.

HENRY BARTELS.

each, by addressing the Commissioner of Patents,

Washington, D. 0. 

